Improvement in car-couplings



A. GROGKER.

Car-Couplings.

Patented May 5,1874.

' No.I50,535.'

WITNESSES ATTORNEYS.

AMP/IMM/IUMAPl/IC 02/1! K {amp/15S M05555 UNITED STATES PATENT OEEIcE.

ALEXANDER GROCKER, OF LA GROSSE, WISCONSIN.

IMPROVEMENT lhl AR- COUPLINGS.

Specification forming part of Letters Patent No. 150,535, dated May 5,1874; application filed March 6, 1874.

To all whom it may concern:

Be it known that I, ALEXANDER GRooKER, of the city and county of LaGrosse and State of Wisconsin, have invented a new and ImprovedOar-Oouplin g; and I do hereby declare that the following is a full,clear, and exact description of the same, reference being had to theaccompanying drawing, forming a part of this specification, in which-Figure l is a side elevation partly in section; Fig. 2, a cross-sectionthrough line w x of Fig. 1; Fig. 3, a plan view of link partly brokenaway; Fig. 4, a crosssection of Fig. 3.

The invention will first be fully described, and then pointed out in theclaims.

A represents a draw-head provided with the slot a, in which slides thecross-bar B, having the projections b. This supports the pin U until alink, D, strikes said projection, and

causes the pin to drop into the link. The slot to inclines downwardlytoward the rear of the draw-headto allow the cross-bar B to avoidcontact with the link after the cars have started, and thus to preventthe usual wear that takes place on the end of link. A A are buffer-headswhich flare outwardly, and are made spacious enough to receive anenlarged portion of the middle of link. The latter is made in two parts,E F, one having the vertically-oblong hole '6, and the other having theprojection f spread at the end, so that the latter may be inserted inthe former, and the spread part turned round into a horizontal plane. Gis a wooden pin which is inserted into the two half-circular grooves cf, one in section E, and the other in section F, of link.

By this construction and mode of fastening the two sections cannot comeapart so long asthe conjoined cars remain on the track; nor can theyturn on each other, by reason of the pin G; but if one car runs 011' anembankment or bridge and turns over, the wooden pin is at once broken,one section turns on the other, and the two sections are separated.

I am aware that a pin-supporting slide, having arms that slide in agroove of draw-head, is old; and also that a coupling, formed of twoparts held together by a pin, forms no part of my invention.

Having thus described my invention, what I claim is 1. The combination,with the coupling-pin and its slide-support B, of a draw-head, havingthe slot a downwardly inclined toward the rear, as and for the purposedescribed.

2. The combination, with two sections pivoted together, and having thehalf -circular holes 0 f, of the wooden pin G, to prevent the sectionsfrom turning at ordinary times, but to break and allow them to turn itone car turns over, as set forth.

ALEXANDER OROCKER.

Witnesses:

WM. S. BURROUGHS, J AMES 1. LYNnEs.

